Class VII

WWTP stands for
  1. Waste Water Treatment Process
  2. Waste Water Treatment Plant
  3. Waste Water Treated Plant
  4. Waste Water Treatment Path
Dried____ is used as manure.
  1. Sludge
  2. Acid
  3. Gas
  4. Water
Ocean water can be made fit for drinking by using
  1. osmosis
  2. reverse osmosis
  3. aeration
  4. filteration
Jaundice affects which organ?
  1. Liver 
  2. Stomach 
  3. Lungs 
  4. Heart 
Open drains is a breeding place for
  1. mosquitoes
  2. flies
  3. disease causing organisms
  4. all of these
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